High-density Polyethylene Piping Products

Spirolite®: Easier to Handle. Faster to Install. Large-Diameter HDPE Pipe that Delivers.

Spirolite is a superior HDPE pipe system for stormwater, sewer, tanks, and relining—lightweight, easy to install, and built for 100+ years of service. It outperforms RCP, FRP, and steel in lifespan, installation efficiency, and overall cost-effectiveness.

A structured, high-density polyethylene (HDPE) pipe system, Spirolite is designed for fluid conveyance in gravity and low-pressure applications. Spirolite is ideal for stormwater detention, sewer, culvert relining, and custom-fabricated structures—including tanks, manholes, wet wells, and lift stations—made from spirally wound HDPE and available in diameters up to 120 inches or larger. With bell and spigot or welded joint options, it delivers long-term durability, corrosion resistance, and installation advantages that outperform traditional materials like concrete, steel, and fiberglass.

Why choose Spirolite?

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Up to 75% lighter than concrete or steel, Spirolite’s unit weight is considerably less than traditional pipe products for municipal and industrial applications, significantly reducing installation costs and equipment needs.

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Outlasts traditional materials with minimal maintenance.

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Spirolite’s high resistance to chemicals, corrosion and abrasive materials offers more reliable long-term performance in a wide array of applications.

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With high elongation at break and high stress-crack resistance, Spirolite handles ground movement (settling) and seismic shifts (such as from an earthquake) better than rigid materials.

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Available up to 120-inch diameters, competing with RCP, FRP, and steel for big projects.

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Spirolite’s bell and spigot joint meets ASTM D3212 criteria to deliver leak-free performance in sanitary sewer, industrial waste and other critical applications.

Download the Spirolite product brochure

Download our brochure to learn about Spirolite high-density polyethylene pipe and fittings, profile options, materials and the advantages of plastic pipes.

Spirolite Applications

water conveyance

Stormwater Detention

Spirolite HDPE detention systems are built for underground stormwater detention, retention and CSO storage. Lightweight, corrosion-resistant and leak-free.

sspirolite_culvert-rehab_promo-nav

Culverts and Canals

Spirolite® pipe systems for canal lining, culvert replacement and ditch enclosure to modernize water management.

custom fabrication

Manholes, Wet Wells, Lift Stations, Risers

Corrosion-resistant Spirolite® structures designed for sanitary, stormwater, and industrial access and pumping.

relining

Pipe Relining and Slip Lining

Large-diameter Spirolite pipe for trenchless relining of aging culverts, storm sewers, and industrial lines. Quick to install with minimal disruption.

odor control

Landfill and Environmental

HDPE tanks and structures for leachate storage, landfill gas control, odor containment, and high-exposure environments.

renewable energy

Geothermal and Utility Vaults

Spirolite vaults are used for geothermal systems, meter pits, and underground utility control. Fabricated to spec with field-proven durability.

profile wall design

Profile-wall Performance

  • Available Pipe Sizes: Diameters up to 120 inches
  • Wall Types: Profile wall (HDPE)
  • Jointing Options: Bell and spigot, extrusion welding, gasketed joints
  • Load Ratings: Meets AASHTO, ASTM, and local agency requirements
  • Flow Characteristics: Superior hydraulic efficiency

Bell-and-spigot joint

Spirolite’s unique bell-and-spigot joint delivers leak-free performance in gravity and low-pressure applications.

The innovative gasket design provides fewer joints to assemble on the job site and dual leak protection: a compression seal against exfiltration and a combination of compression and hydraulic seal against infiltration.

Bell and Spigot Joint

Access our deep HDPE resources

Field Reports

Hickory Ridge Golf Course Pipe Rehabilitation

Hickory Ridge Golf Course restored its stormwater and irrigation system with Snap-Tite and Spirolite solutions from ISCO. Learn how HDPE sliplining and riser rehabilitation delivered fast installation and 100-year performance.

Hickory Ridge Golf Course Pipe Rehabilitation Learn More

Field Reports

Princeton Circuit Maker Vault: A Geothermal Marvel

Discover the groundbreaking story of Princeton University’s latest innovation in sustainable energy: the Princeton Circuit Maker vault. This marvel of engineering isn’t just any underground structure — it’s the largest prefabricated HDPE geothermal vault ever constructed, setting a new standard in green energy infrastructure.

Princeton Circuit Maker Vault: A Geothermal Marvel Learn More

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